6383145521 has 8 divisors (see below), whose sum is σ = 6414866304. Its totient is φ = 6351468480.

The previous prime is 6383145497. The next prime is 6383145553. The reversal of 6383145521 is 1255413836.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6383145521 is a prime.

It is a super-2 number, since 2×6383145521² = 81489093484524722882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6383145121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303860 + ... + 324186.

It is an arithmetic number, because the mean of its divisors is an integer number (801858288).

Almost surely, 2^6383145521 is an apocalyptic number.

It is an amenable number.

6383145521 is a deficient number, since it is larger than the sum of its proper divisors (31720783).

6383145521 is a wasteful number, since it uses less digits than its factorization.

6383145521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21871.

The product of its digits is 86400, while the sum is 38.

The square root of 6383145521 is about 79894.5900609046. The cubic root of 6383145521 is about 1855.0042764291.

The spelling of 6383145521 in words is "six billion, three hundred eighty-three million, one hundred forty-five thousand, five hundred twenty-one".